Attempt Number: 4
Error Message: Action not unique compared to other actions chosen from this state before. Choose a new action

Action Reasoning:
Passenger p4 needs to leave fast0 to reach their goal on floor 4; this clears fast0 for further passengers.

New State Description:
- fast0: At floor 4 (n4), 0/2 passengers, ready for new passengers.- fast1: At floor 4 (n4), 0/2 passengers, available for use.- slow0-0: At floor 2 (n2), 0/1 passengers, waiting for tasks.- p0: On floor 2 (n2), in target position.- p1: On floor 1 (n1), in target position.- p2: On floor 5 (n5), in target position.- p3: On floor 4 (n4), to be moved to floor 5.- p4: On floor 4 (n4), now in target position.- p5: On floor 0 (n0), in target position.- p6: On floor 2 (n2), in target position.

Action Chosen:
(leave p4 fast0 n4 1 0)
